本文整理汇总了C++中BMediaFormats::GetCodeFor方法的典型用法代码示例。如果您正苦于以下问题：C++ BMediaFormats::GetCodeFor方法的具体用法？C++ BMediaFormats::GetCodeFor怎么用？C++ BMediaFormats::GetCodeFor使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BMediaFormats的用法示例。
在下文中一共展示了BMediaFormats::GetCodeFor方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
status_t
XvidDecoder::Setup(media_format* inputFormat, const void* inInfo,
size_t inSize)
{
if (inputFormat == NULL)
return B_BAD_VALUE;
if (inputFormat->type != B_MEDIA_ENCODED_VIDEO)
return B_BAD_VALUE;
// PRINT(("%p->XvidDecoder::Setup()\n", this));
//#if DEBUG
// char buffer[1024];
// string_for_format(*inputFormat, buffer, sizeof(buffer));
// PRINT((" inputFormat=%s\n", buffer));
// PRINT((" inSize=%d\n", inSize));
// print_hex((uchar*)inInfo, inSize);
// PRINT((" user_data_type=%08lx\n", (int)inputFormat->user_data_type));
// print_hex((uchar*)inputFormat->user_data, 48);
//#endif
uint32 codecID = 0;
media_format_family familyID = B_ANY_FORMAT_FAMILY;
// hacky... get the exact 4CC from there if it's in, to help xvid
// handle broken files
// if ((inputFormat->user_data_type == B_CODEC_TYPE_INFO)
// && !memcmp(inputFormat->user_data, "AVI ", 4)) {
// codecID = ((uint32*)inputFormat->user_data)[1];
// familyID = B_AVI_FORMAT_FAMILY;
// PRINT(("XvidDecoder::Setup() - AVI 4CC: %4s\n",
// inputFormat->user_data + 4));
// }
if (codecID == 0) {
BMediaFormats formats;
media_format_description descr;
if (formats.GetCodeFor(*inputFormat, B_QUICKTIME_FORMAT_FAMILY,
&descr) == B_OK) {
codecID = descr.u.quicktime.codec;
familyID = B_QUICKTIME_FORMAT_FAMILY;
#if PRINT_FOURCC
uint32 bigEndianID = B_HOST_TO_BENDIAN_INT32(codecID);
printf("%p->XvidDecoder::Setup() - QT 4CC: %.4s\n", this,
(const char*)&bigEndianID);
#endif
} else if (formats.GetCodeFor(*inputFormat, B_AVI_FORMAT_FAMILY,
&descr) == B_OK) {
codecID = descr.u.avi.codec;
familyID = B_AVI_FORMAT_FAMILY;
#if PRINT_FOURCC
uint32 bigEndianID = B_HOST_TO_BENDIAN_INT32(codecID);
printf("%p->XvidDecoder::Setup() - AVI 4CC: %.4s\n", this,
(const char*)&bigEndianID);
#endif
} else if (formats.GetCodeFor(*inputFormat, B_MPEG_FORMAT_FAMILY,
&descr) == B_OK) {
codecID = descr.u.mpeg.id;
familyID = B_MPEG_FORMAT_FAMILY;
#if PRINT_FOURCC
printf("%p->XvidDecoder::Setup() - MPEG ID: %ld\n", this, codecID);
#endif
}
}
if (codecID == 0)
return B_ERROR;
for (int32 i = 0; i < gSupportedCodecsCount; i++) {
if (gCodecTable[i].family == familyID
&& gCodecTable[i].fourcc == codecID) {
PRINT(("%p->XvidDecoder::Setup() - found codec in the table "
"at %ld.\n", this, i));
fIndexInCodecTable = i;
fInputFormat = *inputFormat;
return B_OK;
}
}
#if PRINT_FOURCC
printf("%p->XvidDecoder::Setup() - no matching codec found in the "
"table.\n", this);
#endif
return B_ERROR;
}